Fourth to sidney l



(No Model.)

B. S. OOWLES. VALVE OPERATING MECHANISM.

Patented Sept. 7, 1897.

ATTORNEY WIT/V53 7 UNITED STATES ATENT rrrcn.

BURTON S. COIVLES, OF NORlVICII, CONNECTICUT, ASSIGNOR CF ONE- FOURTI-I TO SIDNEY L. GEER, OF SAME PLACE.

VALVE-OPERATING MECHANISM.

SPECIFICATION forming part of Letters Patent No. 589,700, dated. September '7, 1897.

Application filed June 7, 1897. Serial No. 639,771. (No model.)

To ctZZ whom it may concern.-

Be it known that I, Bon'rox S. CowLns, a citizen of the United States, residing at Norwich, in the county of New London and State or? Connecticut, have invented a certain new and useful Improvement in Valve-Operating Mechanism, which improvement is fully set forth and described in the following specification, reference being had to the accom pan ying sheet of drawings.

This invention has for its object the production of an improved. form of rocking valve of the class in which a weight operating by gravity is utilized to close or open said valve quickly, such valves being specially valuable for use with hydrocarbon-gas machines for controlling the flow of water to the pump by means of which the aerometer is operated.

In order to clearly explain my said in vention, I have provided the annexed sheet of drawings, in which- Figure 1 is a side elevation of an aerometer having connected therewith the water-supply pipe, my new form of valve, and such other elements as are desirable for the perfect understanding of my present invention. Fig. 2 is an enlarged view, partly in section, of my said valve and the parts immediately re lated thereto, showing said valve as rocked to out oi? the water-supply; and Fig. 3 is a similar view showing the valve rocked to allow the passage of water to said pump. Fig. 4c is a plan view of the elements of Fig. 3. Figs. 5, 6, and 7 are detail views of a yoke that forms an important element of my newlyinvented valve-operating mechanism.

In the drawings the letter (i denotes an ordinary acrometer consisting of two tclescop ing sections, the upper of which, a, is free to move vertically.

1) indicates a water-pipe leading from any convenient source of supply to a pistonplunger which, operating with an air-pump, serves to compress air, which is conveyed by a pipe 0 to the aerometer a and is carried from said acrometer to the carburetor by a pipe ('5. In the main line of water-pipe b is a three-way rocking valve 6, which also eon nects with a waste branch 6'.

Secured to the end of the valve-stem is a frame 9, that is formed with three upwardlyextcnding yokes of U shape, one of said yokes g being located midway the length of the said frame,and also one ateach end thereof. Hung in the central yoke g, by trunnions, is a cylinder 7i, in which is a weight it, that is free to travel from end to end of the cylinder 71- when the latter is properly rocked. One end of the cylinder 71 has secured thereto a fork i, that 1 straddles a vertical rod in, secured to and adapted to rise and fall with section a of the aerometer, and on said red are collars 7o 7: located,respectively,above and below the fork i, and in such relation to said fork that when the rod It begins its upward movement (the valve c being open, as in Fig. 3) the collar 71: forces fork 2' upward, rocking the cylinder 71. until the latter reaches and passes a horizontal position, when the ball 74 rolls to the opposite end of the cylinder and, by reason of its weight, quickly rocks frame g and the connected valve to shut off the flow of water through pipe b. (See Fig. 2.) When the rod 7.; moves downward again, the collar 7o, operating with fork i, rocks the cylinder in the opposite direction until the ball rolls by gravity within said cylinder and finally rocks frame 9 to open the valve, as in Fig. 3.

It should be particularly noted that the valve-controlling frame 1 and the cylinder 71 rock together during the last part of the valve-operating movement, but that the cylinder 71- has a considerable rocking movement on its trunnions independent of said frame. By thus arranging the frame and cylinder much less power is required of the rod 7; when it begins its movement (either upward or downward) than if it were connected directly with the frame 9, as said rod is only required to rock the cylinder slightly past a horizontal posit-ion, when the weight of ball 7t then operates quickly to rock the cylinder and frame 9 sufliciently to open or close the valve, as may be required.

I find in practice that the described valverocking mechanism works most satisfactory and with no possibility of getting out of order.

Having thus described my invention, I

claim as new and wish to secure by Letters l a weight Within said cylinder free to travel by Patentgravity from end to end thereof and means Mechanism for operatingvalves of the class for rocking the said cylinder and frame. herein referred to, consisting of a frame se- BURTON S. OOlVLES. 5 cured t0 the valvestem, a cylinder trnnnioned \Vitnesses:

in said frame and capable of a limited roek- FRANK II. ALLEN, ing movement independently of said frame, MAY F. RITCHIE. 

